被红题刷了

Ac_Code_cn_com @ 2023-10-20 15:18:58

#include<bits/stdc++.h>
using namespace std;
string a;
long long b;
int main(){
    cin>>a>>b;
    for(long long i=0;i<a.size();i++)if(a[i]==3)b--;
    if(b==0)cout<<"YES";
    else cout<<"NO";
    return 0;   
}

by Endline @ 2023-10-20 15:20:28

a[i]=='3'

这种错误还是挺神秘的

by Ac_Code_cn_com @ 2023-10-20 15:24:51

cccccccccccccccccccccccccccccccccc

by Xiaonao_Dali @ 2023-10-30 22:25:48

你仔细想想，字符串取字符用单引号，没单引号判断ASCII码吧